Download HNGU MBBS 1st Year 5503 Physiology Paper I Jun 2018 Question Paper

MGR 5503
First Year MBBS Examination
I MBBS Physiology Paper 1
Time: 3 hours Max Marks: 50
Date: 12-06-2018

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Instructions: 1. Answer to the points. 2. Figure to the
right indicates marks. 3. Use separate answer books
for each section. 4. Draw diagrams wherever
necessary. 5. Write legibly.
Section 1

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1. Write in detail: (any two) (10)
a. Homeostasis (A.38)
b. Genesis and propagation of Action potential
c. Neuromuscular transmission
2. A. Write Short notes on (any two) (6)

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a. Erythroblastosis fetalis
b. Functions of cell membrane (A.4) (8.9)
c. Physiologic basis of treatment of peptic ulcer
(A.241) (8.477)
2. B. Write Short notes on (any one) (3)

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a. Nernst potential

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b. Osmosis and its applied importance (A.32)
(B.19)
3. Write Short notes on (any two) (6)
a. Digestion and absorption of fats (A.294)

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(8.514)
b. Oxygen debt (A.752) (8.83)
c. Anaemia and its classification

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Section 2
4. Explain in detail (any two) (10)

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a. Define circulatory shock. Describe its types and
stages and add a note on physiologic basis of its
treatment (A.654) (8.284)
b. What is electrocardiogram (EC? Draw normal
lead II ECG and label it. Enumerate uses of

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ECG.
c. Explain the mechanisms of inspiration and
expiration giving the role of various muscles
and pressure using suitable diagrams. (A.714)
(8.297.316)

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5. A. Write briefly on (any two) (6)
a. Fick's law of diffusion of gases and its
application in respiratory system (A.604)
(B.216, 296)
b. Chemical regulation of respiration (A.720)

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(8.341)
c. Respiratory sinus arrythmia
5. B. Write briefly on (any onc) (3)
a. What is ENS and how is it controlled by ANS?
(ENS Enteric Nervous System)

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b. Maintenance of body temperature in cold
environment.
6. Write answers in 2-3 sentences: (any six) (6)

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a. Define homeostasis. Who gave this term?
(A.38)

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b. What is sarcomere and its role in body?
(A.171) (8.68,178)
c. What is law of intestine?
d. Enumerate types of cell junctions
e. What is GAIN in a regulatory system?

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f. Give clinical importance of TPA (tissue
plasminogen activator).
g. What is Laplace law? Give one of its applied
aspects
h. What is the causes of pacemaker potential?

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i. Name the types of blood vessels.
j. How does cutaneous vasoconstriction help in
preventing heat loss?
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